H23A1 Proximity Sensor Equivalent & Substitute Parts

Part Overview

The H23A1 is a proximity sensor with radial, side view orientation manufactured by onsemi. This component is classified as obsolete, making equivalent or substitute parts necessary for new designs and ongoing production requirements. The H23A1 functions as a radial emit-detect proximity sensor, and suitable alternatives must maintain compatible package geometry and functional characteristics within the radial, side view form factor.

Substiute Parts

H23A1

onsemiIn Stock: 1099H23A1 Datasheet

Current PartRFQ

QEE113

onsemiIn Stock: 569761QEE113 Datasheet

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QSE113

onsemiIn Stock: 30621QSE113 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the H23A1 is based on the following criteria:

• Package / Case: Radial, Side View (mechanical compatibility)
• Mounting Type: Through Hole (assembly compatibility)
• Orientation: Side View (PCB layout compatibility)
• Product Status: Active (availability and support)
• RoHS Compliance: ROHS3 Compliant (regulatory alignment)
• Operating Temperature Range: -40°C ~ 100°C (functional equivalence)

The substitute parts QEE113 and QSE113 are both manufactured by onsemi and share the identical Radial, Side View package geometry. Both are active products with current manufacturing support and ROHS3 compliance, addressing the obsolescence of the H23A1. QEE113 functions as an infrared emitter, while QSE113 functions as a phototransistor detector, together providing the emit-detect functionality of the original proximity sensor assembly.

Parameter Comparison

Engineering Selection Recommendations

Selection between QEE113 and QSE113 depends on the specific functional role within the proximity sensor assembly:

QEE113 is selected when infrared emission at 940nm wavelength is required. This part provides 50mA maximum forward current, 1.5V typical forward voltage, and 3mW/sr radiant intensity at 100mA with a 50° viewing angle. ROHS3 compliance and active product status ensure long-term availability and regulatory alignment.

QSE113 is selected when infrared detection at 880nm wavelength is required. This part provides 30V maximum collector-emitter breakdown voltage, 100nA maximum dark current, and 100mW maximum power dissipation with a 50° viewing angle. ROHS3 compliance and active product status ensure long-term availability and regulatory alignment.

Both substitute parts maintain identical package geometry and through-hole mounting compatibility with the H23A1, enabling direct mechanical substitution in existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can QEE113 and QSE113 be used together as a proximity sensor pair to replace H23A1?

A: Yes. QEE113 functions as the infrared emitter and QSE113 functions as the infrared detector. Together, they provide the emit-detect proximity sensing functionality of the H23A1. Both parts share the Radial, Side View package geometry and through-hole mounting compatibility required for direct PCB substitution.

Q: Are QEE113 and QSE113 mechanically compatible with existing H23A1 PCB layouts?

A: Yes. Both substitute parts use the Radial, Side View package with through-hole mounting, matching the H23A1 package geometry and orientation. No PCB redesign is required for mechanical compatibility.

Q: What is the difference in wavelength between the substitute parts?

A: QEE113 operates at 940nm (infrared emitter), while QSE113 operates at 880nm (infrared detector). These wavelengths are within the infrared spectrum and are compatible for proximity sensing applications where the emitter and detector wavelengths are closely matched.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both QEE113 and QSE113 are ROHS3 compliant, addressing the RoHS non-compliance of the obsolete H23A1. This compliance is required for new designs and production in regulated markets.

Q: What is the inventory status of the substitute parts?

A: QEE113 has 569,700 pieces in stock, and QSE113 has 30,550 pieces in stock. Both parts are active products with established supply chains.